Medicine What are the big three antibiotics? March 5, 2026 by Myaya | Leave a Comment The "big three" antibiotics are not a formally recognized medical classification. However, if we consider the most historically significant and widely used classes of antibiotics that have profoundly impacted modern medicine, they would likely be penicillins, tetracyclines, and cephalosporins. These groups have been instrumental in treating a vast array of bacterial infections for decades. Understanding […] Read more ยป